<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>flask上传文件</title>
</head>
<body>
  <form action="/upload" method="post" enctype="multipart/form-data">
    <p>请选择文件<input type="file" name="mf"></p>
    <p><input type="submit" value="确定"></p>
  </form>

</body>
</html>